There are always two spirits at work: the Holy Ghost and a satanic or false spirit. Witchcraft comes from a satanic spirit and opposes God's Spirit.
Men get into trouble when they begin to think too highly of their own thoughts. If they are not careful, these opinions will become the driving force in their decision making. This will mean that the word of God finds itself in competition for the seat of authority. The sad truth is that men often fail to notice within themselves this substitution of authorities. While their mouths may falsely testify of a loyal submission to the scriptures, their actions testify that their opinions are instead leading the way. The Devil works subtly because he knows how to gradually lead men astray by keeping them from noticing any abrupt changes within their hearts and outward deeds. By the time rebellion is detected, the Devil has a stronghold only broken by prayer and heartfelt submission to God.
The Bible seems to point to Pharaoh most often as an example of someone with a heart hardened through sin and the deceitfulness of power and fame. Pharaoh's hardened heart led him from one rebellious act to the next. He constantly fought against the Lord and the Lord’s man. Even after all of the miracles in Egypt and the abundance of judgments, he chose to pursue the children of Israel as they departed from Egypt. Pharaoh's hardened heart led him to pursue them to the Red Sea. Out of all the troublesome effects of a hard heart, the most troubling aspect is that it refuses to hearken to the words of the Lord. On at least five occasions, the Lord makes this connection (Exodus 7:13, 22; Exodus 8:15, 19; Exodus 9:12). A hard heart closes the ears to the truth and sets the individual up for greater judgment.
